Shape

[Matt Sanruk 2H]

So regarding today's lecture the topics are only when there are no lone pairs this is correct?

[Jordan Young 2J]

Yeah, for the ones we learned today, they all had no lone pairs on the central atom. But there are different shapes when the central atom has lone pairs, which we will probably learn soon.

[Matt Sanruk 2H]

Ah ok I remember learning something similar to this in high school and was described with AXE, right?

[Shutong Hou_1F]

Yes, because we are only trying to name the shape of molecules.

[simmoneokamoto3K]

Yes , we shouldn't be worrying about lone pairs because professor lavelle mentioned that we only need to name the molecule.

[Matt Sanruk 2H]

But they will affect the shape, right? It's just that he will cover that in a later discussion right?

[xenamclean_1G]

Yes, based on the lecture alone today, lone pairs don't have an effect on the shape. We haven't looked at lone pair electrons with the central atom yet.

[Victoria Otuya 4F]

But when reading pg. 108 of the chemistry book, it does state that lone pairs and bonds are considered when identifying the shape of a molecule. So it changes the structure.

[Ruby Richter 2L]

He will probably go over it in more depth next lecture, but the introduction of lone pairs onto the central atom of a molecule changes the shape. A good example of this is the tetrahedral shape, which is altered to a seesaw with the introduction of a lone pair on the central atom, as in TeCl4.